- Flapen Score
- 27 / 100Ranks 7,921 of 8,347 Electronics niches · −16 vs the category median of 4327
- Market size
- $86K/yr17K searches / yr
- 90-day growth
- -2.1%search demand this quarter
- Competition
- 67%top-5 click share · 4 brands · 248 sellers
Flapen Score
Wd 4tb against its category
The dotted line is the Electronics average. Past it, Wd 4tb is stronger. Inside it, weaker.
Market
The Wd 4tb market on Amazon at a glance
Shoppers on Amazon United States searched for Wd 4tb 17K times last year and spent an estimated $86K. All 4 brands take every click. Flapen scores it 27 out of 100, a Fail.
01 · Demand
An estimated 2.6% of those searches ended in a purchase.
Shoppers searched for this 17K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.6% of those searches ended in a purchase. Searches in the last 90 days moved -2.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $86K a year.
- Searches, last 12 months
- 17K
- Growth, 90 days vs prior 90
- -2.1%
- Conversion, latest week
- 2.6%
- Market size, estimated
- $86Ka year
- Top search term
- wd 4tb9K searches a year
02 · Price
A sale here is worth $193.38.
Listings sell for $193.38 on average, from $98.20 to $545.57. Amazon reports units sold in ranges. This niche sold 500 to 750 a year. The average listing sells 0 to 100 of them. At $193.38 that is $0 to $19K a year per listing.
- Average price
- $193.38above the $15 to $100 sweet spot
- Price range
- $98.20–$545.57
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 500–750
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$19K
- Returns
- 2.6%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
68% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #78 within Data Storage. It carries 37,376 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 68%
- Prime listings
- 95%
- Out of stock, average day
- 0.0%
- Average rank
- #78in Data Storage
- Average rating
- 4.53 starsAmazon United States average 4.42 stars
- Average reviews
- 37,376per listing
- Listings tracked
- 19
04 · Newcomers
2 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 59 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 59 months
Products
Top Wd 4tb products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 30, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s CMR 128 MB Cache 3.5 - WD40EFZZ
- Price
- $137.63
- Rating
- 4.3/5
- Reviews
- 3,641
- Age
- 8mo ago

Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s 128 MB Cache 3.5 - WD40EZZX
- Price
- $148.51
- Rating
- 4.6/5
- Reviews
- 57,669
- Age
- 1y ago

WD 4TB Elements Portable External Hard Drive for Windows USB 3.2 Gen 1/USB 3.0 for PC & Mac Plug and Play Ready - WDBU6Y0040BBK-WESN
- Price
- $133.42
- Rating
- 4.6/5
- Reviews
- 40,006
- Age
- 9y ago

WD 4TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BBK-WESN
- Price
- $140.35
- Rating
- 4.6/5
- Reviews
- 11,256
- Age
- 6y ago

Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s 128 MB Cache 3.5 - WD44PURZ
- Price
- $157.30
- Rating
- 4.4/5
- Reviews
- 1,756
- Age
- 7mo ago
Trending
estimated 90-day click momentum
Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s 128 MB Cache 3.5 - WD40EZZX
- Price
- $148.51
- Rating
- 4.6/5
- Reviews
- 57,669
- Age
- 1y ago

Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s 128 MB Cache 3.5 - WD44PURZ
- Price
- $157.30
- Rating
- 4.4/5
- Reviews
- 1,756
- Age
- 7mo ago

Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s CMR 128 MB Cache 3.5 - WD40EFZZ
- Price
- $137.63
- Rating
- 4.3/5
- Reviews
- 3,641
- Age
- 8mo ago

Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s 256 MB Cache 3.5 - WD40EZAX (Renewed)
- Price
- $108.38
- Rating
- 4.3/5
- Reviews
- 84
- Age
- 2y ago

WD 5TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0050BBK-WESN
- Price
- $153.23
- Rating
- 4.5/5
- Reviews
- 24,728
- Age
- 6y ago
Newest
by launch date
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s 128 MB Cache 3.5 - WD44PURZ
- Price
- $157.30
- Rating
- 4.4/5
- Reviews
- 1,756
- Age
- 7mo ago

Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s CMR 128 MB Cache 3.5 - WD40EFZZ
- Price
- $137.63
- Rating
- 4.3/5
- Reviews
- 3,641
- Age
- 8mo ago

WD_Black SN8100 4TB NVMe SSD - PCIe 5.0x4 M.2 2280 Up to 14 900MB/s Read Speed up to 11 000MB/s Write Speed Best for AI Applications Gaming and Video Editing - WDS400T1X0M
- Price
- $545.57
- Rating
- 4.7/5
- Reviews
- 1,011
- Age
- 1y ago

WD_Black SN7100 4TB NVMe SSD - Gen4 PCIe M.2 2280 Up to 7 000 MB/s Read Speed Up to 6 700 MB/s Write Speed Next Gen TLC 3D NAND for Laptops Handheld Gaming Devices - WDS400T4X0E
- Price
- $324.90
- Rating
- 4.8/5
- Reviews
- 6,157
- Age
- 1y ago

Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM SATA 6 Gb/s 128 MB Cache 3.5 - WD40EZZX
- Price
- $148.51
- Rating
- 4.6/5
- Reviews
- 57,669
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 67% of clicks. Leaders hold, but buyers still shop past them.
Brands
4 falling
Sellers
248
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
67%
Top 20: 100%
Open market
0%
- Western Digital72%
- WD14%
- Sandisk9%
- Seagate4%
Demand
Wd 4tb search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep, Oct · busiest ÷ quietest = 3.6× · 11 of 12 months tracked
Reviews and returns
What reviews say buyers love and hate about Wd 4tb
We read the reviews and the return reasons for every product selling here.
“Doesnt last”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Wd 4tb questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









